Nicholas Teo Yong Yeow, Tew Yiqi, Yeoh, S. H., Yiauw Kah Haur, Lim Ming Jun, Ng Yik Heng, & Tan Hui Shan. (2022). Robotic Delivery System for Multi-Storey Condominium Complexes. Journal of Electronic Voltage and Application, 3(1), 1-15. https://penerbit.uthm.edu.my/ojs/index.php/jeva/article/view/10385